CVE-2023-31176

HIGH

SEL-451 Firmware r315-v0 to r315-v4 - Unauthenticated Authentication Bypass via Session Token Brute-Force

Title source: llm

Description

An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication. See product Instruction Manual Appendix A dated 20230830 for more details.

References (2)

Core 2

Core References

Vendor Advisory

https://selinc.com/support/security-notifications/external-reports/

Third Party Advisory

https://www.nozominetworks.com/blog/

Scores

CVSS v3 7.5

EPSS 0.0093

EPSS Percentile 55.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-331

Status published

Products (3)

selinc/sel-451_firmware r326-v0

selinc/sel-451_firmware r327-v0

selinc/sel-451_firmware r315-v0 - r315-v4

Published Nov 30, 2023

Tracked Since Feb 18, 2026